 body{
            background: whitesmoke;
        }
 #img img{
     border-radius: 20px 20px 0 0;
 }
 #img > div {
				width: 20px;
				height: 20px;
				background: skyblue;
				position: absolute;
				top: 548px;
				text-align: center;
                border-radius: 11px;
 }
 #down_main div{
     position: relative;
     float: left;
     height: 53%;
     width: 50%;
     /*border: #000000 solid 1px;*/
 }
 #down_main div img{
     height: 100%;
     width: 100%;
 }
